524144040 has 128 divisors (see below), whose sum is σ = 1801820160. Its totient is φ = 119487744.

The previous prime is 524144011. The next prime is 524144069. The reversal of 524144040 is 40441425.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (524144011) and next prime (524144069).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 524144040.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492549 + ... + 493611.

It is an arithmetic number, because the mean of its divisors is an integer number (14076720).

Almost surely, 2^524144040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 524144040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (900910080).

524144040 is an abundant number, since it is smaller than the sum of its proper divisors (1277676120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

524144040 is a wasteful number, since it uses less digits than its factorization.

524144040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 524144040 is about 22894.1922766452. The cubic root of 524144040 is about 806.2756621842.

Adding to 524144040 its reverse (40441425), we get a palindrome (564585465).

The spelling of 524144040 in words is "five hundred twenty-four million, one hundred forty-four thousand, forty".